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Implement n3789; constexpr support in named function objects

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git-svn-id: https://llvm.org/svn/llvm-project/libcxx/trunk@191626 91177308-0d34-0410-b5e6-96231b3b80d8
This commit is contained in:
Marshall Clow
2013-09-28 19:06:12 +00:00
parent 6db12cb037
commit 9738cafa4f
21 changed files with 201 additions and 45 deletions
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6
include/__functional_base
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@@ -58,7 +58,8 @@ template <class _Tp>
#endif
struct _LIBCPP_TYPE_VIS_ONLY less : binary_function<_Tp, _Tp, bool>
{
_LIBCPP_INLINE_VISIBILITY bool operator()(const _Tp& __x, const _Tp& __y) const
_LIBCPP_CONSTEXPR_AFTER_CXX11 _LIBCPP_INLINE_VISIBILITY
bool operator()(const _Tp& __x, const _Tp& __y) const
{return __x < __y;}
};
@@ -66,7 +67,8 @@ struct _LIBCPP_TYPE_VIS_ONLY less : binary_function<_Tp, _Tp, bool>
template <>
struct _LIBCPP_TYPE_VIS_ONLY less<void>
{
template <class _T1, class _T2> _LIBCPP_INLINE_VISIBILITY
template <class _T1, class _T2>
_LIBCPP_CONSTEXPR_AFTER_CXX11 _LIBCPP_INLINE_VISIBILITY
auto operator()(_T1&& __t, _T2&& __u) const
{ return _VSTD::forward<_T1>(__t) < _VSTD::forward<_T2>(__u); }
typedef void is_transparent;